#1 - It's a bit "guy in the sky" he could be 2ft off the water or 20ft, there is no reference.
#2 - This is probably my favourite of the set, he is well powered up and I also like the spray and background.
#3 - Is an ass shot and you can't see how high he is from where he took off, I do like the spray trail though.
#4 - I like how this one shows the speed, again the spray helps this, however the kite looks to be powered down, as if he is about to stop.
#5 - Good because it has captured the action, however the hoirzon is off and and he is centered, nothing that couldn't be fixed with the crop tool though.